A proper understanding of antennas requires familiarity with electromagnetics, circuit theory, electronics and signal processing. Candace Suriano, Ph.D., Suriano Solutions John Suriano, Ph.D., Nidec Motors, Auburn Hills, MI, USA Tom Holmes, Agilent Technologies, Tipp City, OH, USA Qin Yu, Alcatel-Lucent, Columbus, OH, USA How does an antenna pick up a signal and convert it to … [Read more...]
Military
Telephonics Corporation’s Telecommunications System Passes EMI/TEMPEST Testing
Telephonics Corporation has announced that it has completed all qualification testing of its NetCom-V™ networked telecommunication system. NetCom-V can now enter full-scale production. The qualification test profile, conducted by certified independent testing laboratories included all environmental Military Standard (MIL-STD 810F), electromagnetic interference (MIL-STD 461), … [Read more...]
2006 Update on Intentional Electromagnetic Interference (EMI)
Dr. William A. Radasky, Ph.D., P.E. Metatech Corporation Introduction Over the past 6 years a substantial number of articles have been written by this author and others identifying the threat and importance of intentional electromagnetic interference (IEMI) [1-5]. Since the publication of the Interference Technology Annual EMC Guide in 2005, work has continued at an … [Read more...]
Measuring and Managing Electromagnetic Interference: Selecting the Right Antenna for Your E3 Program
Philip F. Keebler and Kermit O. Phipps EPRI Solutions, Knoxville, TN Bradford R. Connatser WriteNow Communication, Knoxville, TN Introduction What is an E3 program? Outside of the military environment, the National Aeronautical Space Administration (NASA), and the telecommunication industry, the study of electromagnetic environmental effects (E3) and spectral management … [Read more...]
Developments in Lightning Testing Standards for Aircraft Avionics
Test standards are running behind the fast pace of technological change. Nicholas Wright EMC-Partner, Laufen, Switzerland INTRODUCTION Escalating costs and increasing complexity in modern aircraft has ensured that aircraft design and assembly is now a global phenomena. Today, subsystems can be designed, manufactured, and tested at any location around the world, then … [Read more...]
EMC Management and Design in Military and Aerospace Systems—Avoiding the Pitfalls
A systematic approach to EMC engineering and management is the best way of achieving compliance. A.S. De Beer, Ph.D Ruphus Technologies (Pty) Ltd., Lonehill, South Africa ABSTRACT This article focuses on the necessity of following a systematic engineering approach in the design and testing of military and aerospace systems that must comply with stringent EMC Standards. It … [Read more...]
Developments in Lightning Test Standards for Aircraft Avionics
Test standards are running behind the fast pace of technological change Nicholas Wright, EMC-Partner Laufen, Switzerland Introduction Escalating costs and increasing complexity in modern aircraft have ensured that aircraft design and assembly is now a global phenomena. Today, subsystems can be designed, manufactured, and tested at any location around the world, then shipped to … [Read more...]
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits
ZERO GROUND Flexible (for EMI/RFI) Shielded Conduits eliminate the need for costly, with long lead times and high minimum runs, custom shielded composite assemblies. These conduits are patent pending, utilize industry standard connectors, with most rated for direct burial and provide an excellent solution for those looking to effectively shield internal cables while providing … [Read more...]
2005 Update on Intentional Electromagnetic Interference (IEMI)
IEMI refers to the deliberate attempt to produce EMI to interfere with commercial equipment. Dr. William A. Radasky, Ph.D. Metatech Corporation, Goleta, CA INTRODUCTION Over the past few years several articles have been written by this author and others indicating the threat and importance of intentional electromagnetic interference (IEMI).1–4 Since the publication of the … [Read more...]
Coping with Reflected Power in RF Immunity Systems
EMC system engineers face trade-offs when selecting high power amplifiers for RF immunity testing. During testing, the amplifier must withstand high levels of reflected power. An appreciation of how reflected power affects an amplifier is important if well-informed decisions are to be made. This article uses a simple thought experiment to de-mystify this complex phenomenon and … [Read more...]